Adding-machine



C. W. GOOCH.

ADDING MACHINE. APPLICATION FILED FEB. is. 1916.

1,327,319., z Patented Jan. 6,1920.

5 SHEETS-SHEET I- INVENT R WITNSSES ATTORNEYS o. W. GOOCH.

ADDING MACHINE.

APPLICATION FILED FEB-15,1916.

Patented Jan. 6, 1920.

5 S TS-SHEET 2.

WITNESSES C. W. GOOCH.

ADDING MACHINE.

APPLICATION FILED FEB. 15. IQIB.

Patented Jan. 6, 1920.

5 SHEETS-SHEET 3.

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C. W. GOOCH. -ADDING MACHINE. APPLICATION FILED FEB, 15. ms.

Patented Jan. 6, 1920.

5 SHEETS-SHEET 4 INVENTOR 60;, Z0

ATTORNEYS C. W. GOOCH.

I ADDING MACHINE. APPLICATION FILED FEB.15. I916.

51.35 E, g 5... cg? ii 5. l\ :255 K Patented Jan. 6,1920.

5 SHEE TSHEET 5- w x w mw ATTO R N EYS of Michigan,

frrnn STATES ANT OFFICE.

CLAIBORNE GOOCH, 0F DETROIT, MICHIGAN, ASSIGNOR TO BURROUGHS ADDING MACHINE COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

ADDING-MACHINE.

To all whom it may concern:

Be it known that I, CLAIBORNE W. GOQCH, a citizen of the United States, residin at Detroit, in the county of Wayne and State have invented new and useful Improvements in Adding-Machines, of which the following is a specification.

' The present invention relates to the keydriven class of adding machines which do not ordinarily have any printing equipment. It is frequently desirable in the carrying on of calculating work through use of machines of this sort, to be able to preserve a grand total of the sums of several series of additions or computations; Ordinarily these machines have. a single set of registering wheels and when so equipped there is no way of preserving a registration of a sum or total while another is being accumulated. The purpose of my present invention is to enlarge the capacity of machines of this class by providing an additional set of accumulating wheels and so relating them to the key-driven actuating mechanism or to the regular set of wheels, that the registration of a sum or total may be preserved upon this additional set of wheels while the regular set is returned to zero for the commencement of a new series of registering operations, the sum total of which may be added to that preserved upon the additional set of wheels. In carrying out my invention I provide for using the machine in the ordinary way, as a singleaccumulator machine, and I provide for bringing'into play the additional set of wheels at the will of the operator in order that registrations may be made simultaneously upon the two sets of wheels, and I further provide for resetting the regular set of wheels to zero without affecting the additional set of wheels. Provision is also made for simultaneously resetting both sets of wheels to zero.

In the construction here shown the additional set of numeral wheels is located at the rear just beyond the keyboard and a set of actuating gear segments is so arranged as to be operable at will by the same key-driven actuators which drive the similar gear segments through which motion is transmitted to the regular set of numeral wheels at the front of the machine. A special key is provided whose depression results in coupling the extra Set of gear segments to said actus i ators,

Specification of Letters Patent.

Application filed February 15, 1916.

Patented Jan. 6, 1920.

Serial No. 78,391.

zero and the higher order wheels to the 9- position, and the operation being completed by transmission of a carrying impulse across the series of wheels. Imake provision for similarly zeroizing the additional set of wheels at the rear of the machine, and in this connection I provide another special key whose depression operates to couple the rear zeroizing mechanism to the zeroizing actuator which appears-in theform of the usual hand lever at the right-hand side of the machine.

- Referring to the drawings which accompany and form part of this specification, Figure 1 represents in left-side elevation, and somewhat condensed longitudinally, a machine embodying my present invention, the casing thereof being omitted and p01- tions of the supporting frame work being broken away and various supporting shafts and rods being correspondingly shown in section; Fig. 2 represents some of the same parts under different conditions produced by depression of the special key first above referred to, and depression of an amount key thereafter; Fig. 3 represents a top plan view of the machine with side frame'pieces partly in section and the keyboard broken away; Fig. 4 represents the machine in right-side elevation with the outside frame piece for.

'lator of single accumulation capacity, is identical with that illustrated and described in detail in the prior Patent No. 1,243,839 issued Oct. 23, 1917, upon the invention of Allen A. Horton, this reference to that patent makes unnecessary a detailed description in the present specification of what the accompanying drawings show n that respect.

In aid of a ready comparison, however, I have applied to identical parts the same reference characters used in said patent.

In carrying out the present invention the casing of the machine is extended at the rear and so are the various supporting frame plates, and an accumulating mechanism is mounted in the upper portion of this extended casing and framework, so that the numeral wheels A may easily be read through sight openings in the cover piece of this part of the casing. This additional accumulating mechanism is a substantial duplicate of that at the front of the machine. The gear segments E for driving this rear set of wheels are journaled upon the same cross-rod 2 which supports the bell crank levers B. The latter are just such members of the key-driven actuating system as found in the aforesaid patent, the same being held normally rearward by the power springs B and adapted to be swung forward by depression of the numbered keys F Each of said segments is mounted immediately adjacent one of the bell crank levers B, as shown most clearly in Fig. 5, and is offset so as tobe brought into the same vertical plane. Normally the gear segments E" are held rearward by springs 30 against a rock shaft 31, and abutment lugs 12 on the bell crank levers Bv meet similar lugs e on the segments. Each of the latter carries a coupling hook 32, pivoted on the left-hand side of the segment at the upper forward corner thereof, and the associated bell crank lever B has a laterally projecting stud 7) with which the hook is adapted to engage. A. spring 33 which connects a rear arm of the hook with a stud 3+ on the segment, tends to bring about engagement between the hook and the stud. It is, however, normally restrained from so doing as are all of the corresponding springs on the other segments, by a gang of arms or fingers 35 fastened to the rock shaft 31. The normal condition is illustrated in Figs. 1 and 5, wherein it will be observed that these fingers are engaged with lateraIL -turned endportions of the latches. Under these conditions depression of the numbered keys will have no effect upon the rear accumulator but will merely result in turning the wheels of the forward accun'iulator.

There is secured to the left-hand end of said rock shaft 31 a crank arm 36 and there is journaledupon the frame cross rod 2 a- .lever 37 whlch at 1ts rear end has a slotward all of the fingers 35 and thereby per-- mitting the several springs. 33 to immediately interlock the hooks 32 with the studs 1), so that when the bell crank levers B are forced forward by depression of the operated keys the said segments will be carried along with them. The key stem 38 is preferably notched as at 38 to provide for its being hooked under the keyboard plate to maintain the duplex accumulating state of the machine. A spring 39 applied to the lever 37 normally upholds the said key.

It is desirable to guard against the possibility of simultaneously depressing said key and any amount key, and I therefore provide a simple interlocking arrangement to prohibit any such erroneous manipulation. In the construction of the aforesaid patent an interlocking arrangement is provided between the numbered keys and the zeroizing actuator, which includes a rock shaft 24 and pendent plates 25. I utilize the same rock shaft for effecting the interlock between the amount keys and the duplex key. Thus I secure upon the left-hand end of said rock shaft an arm 24*, which I equip with a stud 24, and I form integral with the crank arm 36 on rock shaft 31, a cam blade 36" to co operate with said stud. Normally the stud is accommodated at the low forward part of the cam blade (Figs. 1 and 5) and of course the latter does not interfere with depression of amount keys. Similarly when the key 38 is fully depressed, the said stud is accommodated at the low rear part of the cam blade. (Fig. 2.) During depression or rise of the said key, the high middle portion of the cam blade wipes past the stud so that during such time the rock shaft 24 blocks the plates 25 in the manner described in said patent, said shaft having been, rocked by the can'iming action of the blade upon the stud 24", Fig. 6.

Referring next to the matter of zeroizing,

(Figs. 4, 5 and 7). Y designates .a crank arm of the prior construction, and Z the hand-lever rotatively interlocked with said crank-arm, the latter being operatively connected as usual with a rock shaft X serving to operate devices which lock the gear disks I and operate the levers H, in the manner and with the effect fully described in the aforesaid patent. There is a corresponding rock shaft X serving to operate similar devices for zeroizing the rear set of wheels in the same manner, and I provide for the driving of this rock'jshaft by the hand-lever Z, the same as the rock shaft X is driven, whenever it is desired to zeroize the rear set of wheels. On the right-hand end of said rock shaft X is secured a crank arm' 50 7 shown at 52% The said crank arm Y carries. a stud y for cotiperating with said notch to reciprocate the said link 52. Normally the link is held up with the forward side of the notch clear of the stud as shown in Fig.

'4, so that a forward stroke of the crank arm Y has no effect upon the link. Lowering of the link to interlock it with the stud is accomplished by .depression of a special key 53 located at theleft of the'keyhoard just in rear of the key 38. The stem 53 0f this key is pivotally connected with an arm 54 fastened to a rock shaft 55 which at its right-hand end carries another arm'56 having a stud 56 occupying a slot 52 in the link 52. A spring 5 7 is applied to the longer arm 54, (Fig. 1) and normally upholds the key- 53 and the link 52. Depression of the keyswings the rock shaft arm 56 down carrying the link with it and interlocking the latter with the crank arm Y, as shown in Fig. 7 where the condition represented is that obtained when the zeroizing handle is forward. In order to avoid the necessity of maintaining finger pressure upon the key 53 throughout the operation, and also to insure maintenance of the coupling between the link 52 and crank arm Y throughout the operation, said link is made with'a raised portion 52 to run under the frame stud 19 when the link starts forward and remains under that stud until the link returns .to normal, as shown in- Fig. 7.

The reason for slotting the rear end of the link 52 is the same as that for connecting the crank arms Y and X in the prior construction by the links X and spring X Aspring 58, having a corresponding function, connects the stud at the lowerend of the lever 51 with a stud 52 carried by the link 52. The

,function of the yielding connection between a. the zeroizing actuator and the zeroizing I f mechanism of the prior construction, is fully explained in said prior patent, in its relation to the working of those devices which operate to prevent erratic action in zeroizflstroke of the handlever.

ingthrough too quickly executing a second Devices of the same sort and performing-the same function in the same way; though somewhat changed form, are employedcin connection with the rear accumulator. They appear in Fig. land to facilitate comparison with the old' devices, I have applied to them correspond ing reference characters with the suiiix As in the case of the forward accumulator, which is exactly like that shown and described said prior patent, so inthe case of the present rear accumulator, the spring 58 will stretch when the stud 7W encounters the blocking shoulder of the lever 10 as a result of too speedy execution of- 'a second stroke of the hand lever.

There is illustrated in the present drawings the same interlock between the hand lever and the numeral keys that is shown and described in said prior patent, with a modification made necessary by reason of the before described interlock between the duplex key 38 and said numeral keys. Thus the link 22, instead of having merely a pivotal connection with the. crank arm 23 on the right hand end of the rock shaft 24,

' is slotted as shown at 22 and the crank arm stud 23 is connected by a spring 23 with .a stud on a rearward extension of'said link ing ratchets and the Wheels B being formed integrally with broad pinions B meshing with the driven gear wheels S. The registering wheels mustbe freed from the control exercised over them by these devices, whenever zeroizing is to be performed. The said broad pinions are therefore carried upon a laterally shiftable shaft 60, (Fig. 3). For the purpose of shifting the shaft of the forward controlling devices, one of the links X is equipped with a cam hook 61, (Fig. 4) which embraces said shaft between collars thereon. formation of this hook is such as to shift the said shaft to the left when the hand lever Z is pulled forward and to thereby disaline the toothed wheels B from the notched disks A. When the hand lever returns, the cam hook shifts" the shaft back again and realines said toothed wheels with said disks.

The shaft 60 of the rear controlling de- I vices is embraced by a slotted link. 62 whose forward portion has a cam formation corresponding with that of the. hook 61. This link is pivotally connected with the stud 50.

of the crank arm 50 whichcouples that arm with the lever 51, and so will be reciprocated As clearly shown in Fig. 8, the

whenever the hand lever, is operated for zeroizing the rear accumulator. The link i 62 is preferably guidedin its reciprocations The machine as I. have here shown it has only two rows of numbered keys, but it W111 of course be understood that in practice there would rdinari y be a very ,much

lab

greater number of rows of keys and corresponding trains of mechanism.

It will be obvious that the above described machine is well calculated to subserve the purposes outlined in the opening statement of this specification. With the duplex key 38 up, the machine can manifestly serve as a key-driven calculator of single accumulation capacity, after the manner of the wellknown prior machines. With said key down, simultaneous registration in the two accumulators can be practised. With the other special key 53 up, the front accumulator can be zeroized while the total of preceding registrations is preserved upon the rear accumulator, Then a second series of amounts can be accumulated upon the forward accumulator and simultaneously added to the accumulation upon the rear accumulator. Finally, when the calculation is completed, both the accumulators can be Zeroized by depressing the said key 53 and pulling the zeroizing handle.

While, as above stated, themachine constructed in the manner above described, is well calculated to subserve these purposes, it must he understood that the invention is susceptible of embodiment otherwise than as here shown.

I claim:

1. The combination of vibrating register actuators; keys which diiferentially impart movement to said actuators; a plurality of sets of adding wheels, each set having its own carrying mechanism; driving connections between the actuators and said sets of wheels; with settable provisions for causing simultaneous registration of amounts upon both sets of wheels, or upon one set independently of the other, by the power imparted through the keys; a zeroizing handle; and separable connections between the same and the sets of wheels for either simul taneously turning the sets of wheels to zero or turning one set only to zero.

2. The combination of vibrating actuators; keys for differentially driving the same; a set of registering wheels; mechanism driven by the actuators for turning said wheels; carrying mechanism connecting 'the wheels; a second set of registering wheels; mechanism for driving them; means first mentioned set of wheels; and means for coupling said actuator to and uncoupling it trom the zeroizmg mechanlsm of the second set of wheels.

3. lhe combination of vibrating actuators; keys 'for difierentially driving the same; a set of registering wheels; mechanism driven by the actuators for turning said wheels; carrying mechanism connecting the wheels; a second set of registering wheels; mechanism for driving them, including vibrating members located adjacent the actuators and having movably mounted couplers to engage the same; a key and connections for controlling said couplers; and carrying mechanism connecting the wheels of said second set.

4. The combination of vibrating actuators; keys for differentially driving the same; a set of registering wheels; mechanism driven by the actuators for turning said wheels; carrying mechanism connecting the wheels; a second set of registering wheels; mechanism for driving them; means for directly connecting said mechanism with and disconnecting it from the actuators; carrying mechanism connecting the wheels of the said second set; zeroizing mechanism for each set of wheels comprising means for collectively advancing them independently of the actuators and utilizing the marrying mechanisms; a Vibrating actuator operatively connected with the zeroizing mechanism of the first-mentioned set of wheels; a link operatively connected with the zeroizing mechanism of the second set of wheels and engageable with and disengageable from said vibrating actuator; and a key and connections controlling said link.

CLAIBORNE W. GOOCH. Witnesses J. A. BROPHY, R. S. MIELERT. 

